Home / 19,017.60-26,258.40-12,307.20

Finding the Fourth Proportional to 19,017.60, 26,258.40 and 12,307.20

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Solution

The fourth proportional to 19,017.60, 26,258.40 and 12,307.20 is: 16,993.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,017.60 : 26,258.40 = 12,307.20 : x
  2. Step 2: Convert to fraction form
    19,017.60/26,258.40 = 12,307.20/x
  3. Step 3: Cross multiply
    19,017.60x = 26,258.40 × 12,307.20
  4. Step 4: Simplify right side
    19,017.60x = 323,167,380.48
  5. Step 5: Solve for x
    x = 323,167,380.48/19,017.60
  6. Step 6: Final answer
    x = 16,993.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.